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South Africa
Tumelo Mine (Exxaro Coal Central (ECC) Complex)

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 Location:
15 km NW from Hendrina, South Africa

  Regional Office:
Roger Dyason Road
PO Box 9229PO Box 9229, Pretoria, 0001
Pretoria West
South Africa
0183
Phone  ...  Subscription required
Fax+27-12-323-3400
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Filings & News

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Overview

StageProduction
Mine TypeUnderground
Commodities
  • Coal (thermal)
Mining Method
  • Continuous
  • Bord-and-pillar
Processing
  • Wash plant
Tumelo’s mining right (10115MR) covers 462.9ha on the farm Boschmanskop 154 IS. The project is included in the ancillary section as Tumelo forms an integral part of the ECC complex.

After operating for six years, Tumelo ceased production in January 2014 after its mining contract expired, and it was placed on care and maintenance.

Mmakau Mining recommissioned the operation in 2019 with first coal mined in April.


Owners & OPERATOR

Source: p. 80
CompanyInterestOwnership
Exxaro Resources Ltd. 49 % Indirect
Mmakau Mining (Pty) Ltd 51 % Indirect
Tumelo Coal Mines (Pty) Ltd. (operator) 100 % Direct
Following the purchase of Total Coal South Africa (TCSA) assets by Exxaro in August 2015, the current Tumelo shareholding is 51% Mmakau Mining and 49% ECC.

Deposit Type

  • Sedimentary


Summary:

Tumelo geology.
Tumelo is to the north of the Smithfield Ridge on the northeastern edge of the Springs-Witbank coalfield. The area is part of the Karoo basin with stratigraphy similar to that of other ECC operations, Dorstfontein and Forzando with subtle location-induced differences.

Six coal seams are developed in the area, named from the base up as S1, S2, S4L, S4U, S4A and S5. S1 is very thin, being only developed in the deepest part of the palaeo-valley. The thickest average seam is the S2 (0.5m to 5.3m), developed mainly in a palaeo-valley where it is either thin or absent over the adjacent palaeo-ridges. S2 has been exploited since Tumelo production started in 2009. S4L is the most continuous and secondthickest seam while S4U is thin and has mostly been eroded. S4A is thin and patchily developed and S5 is only present in a topographically high area in the south east. The only economically exploitable seam is S2.

Late Jurassic dolerite sills and dykes occur in the Tumelo area. The intrusions resulted in displacement of the various seams and devolatilisation of extensive areas of coal. The geological complexity and associated challenges are proactively managed by extensive infill drilling, downhole wireline logging for better contact definition and seam correlation as well as surface mapping, particularly of basement outcrops. This information is captured in a structural model, together with potential risks captured in a GIS-based risk and opportunity domain analysis (RODA), allowing for a more integrated approach to risk management.


Mining Methods

  • Continuous
  • Bord-and-pillar


Summary:

A 2002 feasibility study confirmed the presence of economic coal reserves. First coal was recorded in 2009, with Tumelo exploiting S2 using bord-and pillar. Mining was outsourced to SBS Mining Proprietary Limited, a mining contractor.


Crushing and Grinding


Processing

  • Wash plant

Source: Subscription required

Summary:

Using one continuous miner, the mine produced some 700kt ROM at its peak. Initially, this was custom washed for an export product at the Shanduka (Glencore-owned) Koornfontein mine washing plant, but would later be carted to Forzando North and washed for a 5 800kcal/kg export product.


Combined production numbers are reported under Exxaro Coal Central (ECC) Complex


Reserves at December 31, 2019:

CategoryTonnage Commodity
Measured 8.4 Mt Coal (thermal)
Indicated 0.2 Mt Coal (thermal)
Inferred 1.8 Mt Coal (thermal)
Total Resource 10.4 Mt Coal (thermal)


Heavy Mobile Equipment:

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Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2018
Annual Report 2017
Year-end Mineral Reserves 2017
Annual Report 2016
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Aerial view:

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